Peter M. Landey Books

Francois joseph Fetis

By Francois Joseph Fetis, Peter M. Landey

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Treatise on melody

By Anton Joseph Reicha

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"Anton Reicha's Treatise on Melody (1814) was one of the most widely read and influential treatises of the early to mid-19th century. Reicha systematically lays out a theory of melodic phraseology,...

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If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

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If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.